world_load.c

   1 #include "world_load.h"
   2 #include "world_routes.h"
   3 #include "world_gate.h"
   4 #include "ent_skateshop.h"
   5 #include "addon.h"
   6 #include "save.h"
   7 #include "vg/vg_msg.h"
   8 #include "network.h"
   9 #include "player_remote.h"
  10 #include "vg/vg_loader.h"
  11 #include "vg/vg_io.h"
  12 #include <string.h>
  13
  14 /*
  15  * load the .mdl file located in path as a world instance
  16  */
  17 static void world_instance_load_mdl( u32 instance_id, const char *path ){
  18    world_instance *world = &world_static.instances[ instance_id ];
  19    world_init_blank( world );
  20    world->status = k_world_status_loading;
  21
  22    vg_info( "Loading instance[%u]: %s\n", instance_id, path );
  23
  24    void *allocator = NULL;
  25    if( instance_id == 0 ) allocator = world_static.heap;
  26    else allocator = world_static.instances[instance_id-1].heap;
  27
  28    u32 heap_availible = vg_linear_remaining( allocator );
  29    u32 min_overhead = sizeof(vg_linear_allocator);
  30
  31    if( heap_availible < (min_overhead+1024) ){
  32       vg_fatal_error( "out of memory" );
  33    }
  34
  35    u32 size = heap_availible - min_overhead;
  36    void *heap = vg_create_linear_allocator( allocator, size, VG_MEMORY_SYSTEM );
  37
  38    world->heap = heap;
  39    mdl_context *meta = &world->meta;
  40
  41    mdl_open( meta, path, world->heap );
  42    mdl_load_metadata_block( meta, world->heap );
  43    mdl_load_animation_block( meta, world->heap );
  44    mdl_load_mesh_block( meta, world->heap );
  45
  46    vg_info( "%u\n", sizeof(ent_cubemap) );
  47
  48    MDL_LOAD_ARRAY( meta, &world->ent_gate,      ent_gate,       heap );
  49    MDL_LOAD_ARRAY( meta, &world->ent_camera,    ent_camera,     heap );
  50    MDL_LOAD_ARRAY( meta, &world->ent_spawn,     ent_spawn,      heap );
  51    MDL_LOAD_ARRAY( meta, &world->ent_light,     ent_light,      heap );
  52    MDL_LOAD_ARRAY( meta, &world->ent_route_node,ent_route_node, heap );
  53    MDL_LOAD_ARRAY( meta, &world->ent_path_index,ent_path_index, heap );
  54    MDL_LOAD_ARRAY( meta, &world->ent_checkpoint,ent_checkpoint, heap );
  55    MDL_LOAD_ARRAY( meta, &world->ent_route,     ent_route,      heap );
  56    MDL_LOAD_ARRAY( meta, &world->ent_water,     ent_water,      heap );
  57    MDL_LOAD_ARRAY( meta, &world->ent_audio_clip,ent_audio_clip, heap );
  58    MDL_LOAD_ARRAY( meta, &world->ent_audio,     ent_audio,      heap );
  59    MDL_LOAD_ARRAY( meta, &world->ent_volume,    ent_volume,     heap );
  60    MDL_LOAD_ARRAY( meta, &world->ent_traffic,   ent_traffic,    heap );
  61    MDL_LOAD_ARRAY( meta, &world->ent_marker,    ent_marker,     heap );
  62    MDL_LOAD_ARRAY( meta, &world->ent_skateshop, ent_skateshop,  heap );
  63    MDL_LOAD_ARRAY( meta, &world->ent_swspreview,ent_swspreview, heap );
  64    MDL_LOAD_ARRAY( meta, &world->ent_ccmd,      ent_ccmd,       heap );
  65    MDL_LOAD_ARRAY( meta, &world->ent_objective, ent_objective,  heap );
  66    MDL_LOAD_ARRAY( meta, &world->ent_challenge, ent_challenge,  heap );
  67    MDL_LOAD_ARRAY( meta, &world->ent_relay,     ent_relay,      heap );
  68    MDL_LOAD_ARRAY( meta, &world->ent_cubemap,   ent_cubemap,    heap );
  69    MDL_LOAD_ARRAY( meta, &world->ent_miniworld, ent_miniworld,  heap );
  70    MDL_LOAD_ARRAY( meta, &world->ent_prop,      ent_prop,       heap );
  71    MDL_LOAD_ARRAY( meta, &world->ent_region,    ent_region,     heap );
  72    MDL_LOAD_ARRAY( meta, &world->ent_glider,    ent_glider,     heap );
  73    MDL_LOAD_ARRAY( meta, &world->ent_npc,       ent_npc,        heap );
  74
  75    mdl_array_ptr infos;
  76    MDL_LOAD_ARRAY( meta, &infos, ent_worldinfo, vg_mem.scratch );
  77
  78    world->skybox = k_skybox_default;
  79    if( mdl_arrcount(&infos) )
  80    {
  81       world->info = *((ent_worldinfo *)mdl_arritm(&infos,0));
  82
  83       if( world->meta.info.version >= 104 )
  84       {
  85          if( MDL_CONST_PSTREQ( &world->meta, world->info.pstr_skybox,"space"))
  86          {
  87             world->skybox = k_skybox_space;
  88          }
  89       }
  90    }
  91    else
  92    {
  93       world->info.pstr_author = 0;
  94       world->info.pstr_desc = 0;
  95       world->info.pstr_name = 0;
  96       world->info.timezone = 0.0f;
  97       world->info.flags = 0;
  98    }
  99
 100    time_t seconds = time(NULL) % ((u32)vg_maxf(1.0f,k_day_length)*60);
 101    world->time  = ((f64)(seconds)/(k_day_length*60.0));
 102    world->time += (world->info.timezone/24.0);
 103
 104    /* process resources from pack */
 105    u64 t4 = SDL_GetPerformanceCounter();
 106    world_gen_load_surfaces( world );
 107    u64 t5 = SDL_GetPerformanceCounter();
 108    world_gen_routes_ent_init( world );
 109    world_gen_entities_init( world );
 110    u64 t6 = SDL_GetPerformanceCounter();
 111
 112    /* main bulk */
 113    u64 t0 = SDL_GetPerformanceCounter();
 114    world_gen_generate_meshes( world );
 115    u64 t1 = SDL_GetPerformanceCounter();
 116    world_gen_routes_generate( instance_id );
 117    u64 t2 = SDL_GetPerformanceCounter();
 118    world_gen_compute_light_indices( world );
 119    u64 t3 = SDL_GetPerformanceCounter();
 120    mdl_close( meta );
 121
 122    u64 utime_mesh = t1-t0,
 123        utime_route = t2-t1,
 124        utime_indices = t3-t2,
 125        utime_tex = t5-t4,
 126        utime_ent = t6-t5,
 127        ufreq = SDL_GetPerformanceFrequency();
 128
 129    f64 ftime_mesh = ((f64)utime_mesh / (f64)ufreq)*1000.0,
 130        ftime_route = ((f64)utime_route / (f64)ufreq)*1000.0,
 131        ftime_ind = ((f64)utime_route / (f64)ufreq)*1000.0,
 132        ftime_tex = ((f64)utime_tex / (f64)ufreq)*1000.0,
 133        ftime_ent = ((f64)utime_ent / (f64)ufreq)*1000.0;
 134
 135    vg_info( "wtime:mesh %.2fms route %.2fms ind %.2fms tex %.2fms ent %.2fms\n",
 136                ftime_mesh, ftime_route, ftime_ind, ftime_tex, ftime_ent );
 137
 138    /* init player position.
 139     *   - this is overriden by the save state when(if) it loads */
 140    world_default_spawn_pos( world, world->player_co );
 141
 142    /* allocate leaderboard buffers */
 143    u32 bs = mdl_arrcount(&world->ent_route)*sizeof(struct leaderboard_cache);
 144    world->leaderboard_cache = vg_linear_alloc( heap, bs );
 145
 146    for( u32 i=0; i<mdl_arrcount( &world->ent_route ); i ++ )
 147    {
 148       struct leaderboard_cache *board = &world->leaderboard_cache[i];
 149       board->data = vg_linear_alloc( heap, NETWORK_REQUEST_MAX );
 150       board->status = k_request_status_client_error;
 151       board->cache_time = 0.0;
 152       board->data_len = 0;
 153    }
 154
 155    world->routes_ui = vg_linear_alloc( heap,
 156          sizeof(struct route_ui)*mdl_arrcount(&world->ent_route) );
 157
 158    vg_async_call( async_world_postprocess, world, 0 );
 159    vg_async_stall();
 160 }
 161
 162 struct world_load_complete_data{
 163    savedata_file save;
 164    enum world_purpose purpose;
 165 };
 166
 167 static void skaterift_world_load_done( void *payload, u32 size )
 168 {
 169    struct world_load_complete_data *data = payload;
 170    world_instance *world = &world_static.instances[ data->purpose ];
 171
 172    vg_msg sav;
 173    vg_msg_init( &sav, data->save.buf, data->save.len );
 174
 175    if( data->purpose != k_world_purpose_hub )
 176    {
 177       vg_msg player_frame = sav;
 178       if( vg_msg_seekframe( &player_frame, "player" ) )
 179       {
 180          vg_msg_getkvvecf( &player_frame, "position", k_vg_msg_v3f,
 181                            world->player_co, NULL );
 182       }
 183    }
 184
 185    world_entity_start( world, &sav );
 186    world->status = k_world_status_loaded;
 187    world_static.load_state = k_world_loader_none;
 188
 189    if( world_static.clear_async_op_when_done )
 190    {
 191       skaterift.op = k_async_op_none;
 192       world_static.clear_async_op_when_done = 0;
 193    }
 194 }
 195
 196 /*
 197  * Does a complete world switch using the remaining free slots
 198  */
 199 void skaterift_world_load_thread( void *_args )
 200 {
 201    struct world_load_args args = *((struct world_load_args *)_args);
 202
 203    addon_reg *reg = args.reg;
 204    world_static.instance_addons[ args.purpose ] = reg;
 205
 206    char uid[ADDON_UID_MAX];
 207    addon_alias_uid( &reg->alias, uid );
 208    vg_info( "LOAD WORLD %s @%d\n", uid, args.purpose );
 209
 210    char path_buf[4096];
 211    vg_str path;
 212    vg_strnull( &path, path_buf, 4096 );
 213
 214    addon_get_content_folder( reg, &path, 1 );
 215
 216    vg_str folder = path;
 217    if( !vg_strgood( &folder ) ) {
 218       vg_error( "Load target too long\n" );
 219       return;
 220    }
 221
 222    char worlds[k_world_max-1][4096];
 223    u32 i=0;
 224
 225    vg_dir dir;
 226    if( !vg_dir_open(&dir, folder.buffer) ){
 227       vg_error( "opendir('%s') failed\n", folder.buffer );
 228       return;
 229    }
 230
 231    while( vg_dir_next_entry(&dir) ){
 232       if( vg_dir_entry_type(&dir) == k_vg_entry_type_file ){
 233          const char *d_name = vg_dir_entry_name(&dir);
 234          if( d_name[0] == '.' ) continue;
 235
 236          vg_str file = folder;
 237          vg_strcat( &file, "/" );
 238          vg_strcat( &file, d_name );
 239          if( !vg_strgood( &file ) ) continue;
 240
 241          char *ext = vg_strch( &file, '.' );
 242          if( !ext ) continue;
 243          if( strcmp(ext,".mdl") ) continue;
 244
 245          if( i == k_world_max-1 ){
 246             vg_warn( "There are too many .mdl files in the map folder!(3)\n" );
 247             break;
 248          }
 249
 250          strcpy( worlds[i++], file.buffer );
 251       }
 252    }
 253    vg_dir_close(&dir);
 254
 255    if( i == 0 ){
 256       vg_warn( "There are no .mdl files in the map folder.\n" );
 257    }
 258
 259    u32 first_index = 0;
 260    for( u32 j=0; j<i; j++ ){
 261       vg_str name = { .buffer = worlds[j], .i=strlen(worlds[j]),
 262                       sizeof(worlds[j]) };
 263       char *fname = vg_strch( &name, '/' );
 264       if( fname ){
 265          if( !strcmp( fname+1, "main.mdl" ) ){
 266             first_index = j;
 267          }
 268       }
 269    }
 270
 271    world_instance_load_mdl( args.purpose, worlds[first_index] );
 272
 273    vg_async_item *final_call =
 274       vg_async_alloc( sizeof(struct world_load_complete_data) );
 275
 276    struct world_load_complete_data *data = final_call->payload;
 277    data->purpose = args.purpose;
 278
 279    skaterift_world_get_save_path( args.purpose, data->save.path );
 280    savedata_file_read( &data->save );
 281
 282    vg_async_dispatch( final_call, skaterift_world_load_done );
 283    vg_async_stall();
 284 }
 285
 286 void skaterift_change_client_world_preupdate(void)
 287 {
 288    if( world_static.load_state != k_world_loader_preload )
 289       return;
 290
 291    /* holding pattern before we can start loading the new world, since we might
 292     * be waiting for audio to stop */
 293    for( u32 i=1; i<k_world_max; i++ )
 294    {
 295       world_instance *inst = &world_static.instances[i];
 296
 297       if( inst->status == k_world_status_unloading )
 298       {
 299          if( world_freeable( inst ) )
 300          {
 301             world_free( inst );
 302          }
 303          return;
 304       }
 305    }
 306
 307    if( vg_loader_availible() )
 308    {
 309       vg_info( "worlds cleared, begining load\n" );
 310       world_static.load_state = k_world_loader_load;
 311
 312       vg_linear_clear( vg_async.buffer );
 313       struct world_load_args *args =
 314          vg_linear_alloc( vg_async.buffer, sizeof(struct world_load_args) );
 315       args->purpose = k_world_purpose_client;
 316       args->reg = world_static.instance_addons[ k_world_purpose_client ];
 317
 318       /* this is replaces the already correct reg but we have to set it again
 319        * TOO BAD */
 320
 321       /* finally can start the loader */
 322       vg_loader_start( skaterift_world_load_thread, args );
 323    }
 324 }
 325
 326 /*
 327  * places all loaded worlds into unloading state, pass NULL to reload the world
 328  */
 329 void skaterift_change_world_start( addon_reg *reg )
 330 {
 331    if( world_static.instance_addons[ k_world_purpose_client ] == reg )
 332    {
 333       vg_warn( "World is already loaded\n" );
 334       return;
 335    }
 336
 337    if( !reg )
 338    {
 339       if( world_static.instance_addons[ k_world_purpose_client ] )
 340       {
 341          reg = world_static.instance_addons[ k_world_purpose_client ];
 342          world_static.clear_async_op_when_done = 1;
 343       }
 344       else
 345       {
 346          vg_warn( "No client world loaded\n" );
 347          return;
 348       }
 349    }
 350
 351    world_static.load_state = k_world_loader_preload;
 352
 353    if( world_static.active_instance != 0 )
 354       skaterift.op = k_async_op_clientloading;
 355
 356    char buf[76];
 357    addon_alias_uid( &reg->alias, buf );
 358    vg_info( "switching to: %s\n", buf );
 359    skaterift_autosave(1);
 360
 361    vg_linear_clear( vg_mem.scratch ); /* ?? */
 362    vg_info( "unloading old worlds\n" );
 363
 364    world_instance *client_world =
 365       &world_static.instances[ k_world_purpose_client ];
 366
 367    if( client_world->status == k_world_status_loaded )
 368    {
 369       client_world->status = k_world_status_unloading;
 370       world_fadeout_audio( client_world );
 371    }
 372
 373    world_static.instance_addons[ k_world_purpose_client ] = reg;
 374    network_send_item( k_netmsg_playeritem_world1 );
 375    relink_all_remote_player_worlds();
 376    world_unlink_nonlocal( &world_static.instances[k_world_purpose_hub] );
 377 }
 378
 379 /* console command for the above function */
 380 int skaterift_load_world_command( int argc, const char *argv[] )
 381 {
 382    if( !vg_loader_availible() )
 383    {
 384       vg_error( "Loading thread is currently unavailible\n" );
 385       return 0;
 386    }
 387
 388    if( argc == 1 )
 389    {
 390       if( !strcmp( argv[0], "reload" ) )
 391       {
 392          skaterift_change_world_start( NULL );
 393          return 0;
 394       }
 395
 396       addon_alias q;
 397       addon_uid_to_alias( argv[0], &q );
 398
 399       u32 reg_id = addon_match( &q );
 400       if( reg_id != 0xffffffff )
 401       {
 402          addon_reg *reg = get_addon_from_index( k_addon_type_world, reg_id, 0 );
 403          skaterift_change_world_start( reg );
 404       }
 405       else
 406       {
 407          vg_error( "Addon '%s' is not installed or not found.\n", argv[0] );
 408       }
 409    }
 410    else
 411    {
 412       vg_info( "worlds availible to load:\n" );
 413
 414       for( int i=0; i<addon_count(k_addon_type_world,0); i ++ )
 415       {
 416          addon_reg *w = get_addon_from_index( k_addon_type_world, i, 0);
 417
 418          char buf[ADDON_UID_MAX];
 419          addon_alias_uid( &w->alias, buf );
 420
 421          if( w->flags & ADDON_REG_HIDDEN )
 422             vg_info( "  %s [hidden]\n", buf );
 423          else
 424             vg_info( "  %s\n", buf );
 425       }
 426    }
 427
 428    return 0;
 429 }
 430
 431 /*
 432  * checks:
 433  *  1. to see if all audios owned by the world have been stopped
 434  *  2. that this is the least significant world
 435  */
 436 int world_freeable( world_instance *world )
 437 {
 438    if( world->status != k_world_status_unloading ) return 0;
 439    u8 world_id = (world - world_static.instances) + 1;
 440
 441    for( u32 i=world_id; i<vg_list_size(world_static.instances); i++ ){
 442       if( world_static.instances[i].status != k_world_status_unloaded ){
 443          return 0;
 444       }
 445    }
 446
 447    int freeable = 1;
 448    audio_lock();
 449    for( u32 i=0; i<AUDIO_CHANNELS; i++ ){
 450       audio_channel *ch = &vg_audio.channels[i];
 451
 452       if( ch->allocated && (ch->world_id == world_id)){
 453          if( !audio_channel_finished( ch ) ){
 454             freeable = 0;
 455             break;
 456          }
 457       }
 458    }
 459    audio_unlock();
 460    return freeable;
 461 }
 462
 463 /*
 464  * Free all resources for world instance
 465  */
 466 void world_free( world_instance *world )
 467 {
 468    vg_info( "Free world @%p\n", world );
 469
 470    /* free meshes */
 471    mesh_free( &world->mesh_route_lines );
 472    mesh_free( &world->mesh_geo );
 473    mesh_free( &world->mesh_no_collide );
 474
 475    /* glDeleteBuffers silently ignores 0's and names that do not correspond to
 476     * existing buffer objects.
 477     * */
 478    glDeleteBuffers( 1, &world->tbo_light_entities );
 479    glDeleteTextures( 1, &world->tex_light_entities );
 480    glDeleteTextures( 1, &world->tex_light_cubes );
 481
 482    /* delete textures and meshes */
 483    glDeleteTextures( world->texture_count-1, world->textures+1 );
 484
 485    u32 world_index = world - world_static.instances;
 486    if( world_index ){
 487       vg_linear_del( world_static.instances[world_index-1].heap,
 488                      vg_linear_header(world->heap) );
 489    }
 490
 491    for( u32 i=0; i<mdl_arrcount(&world->ent_cubemap); i++ ){
 492       ent_cubemap *cm = mdl_arritm(&world->ent_cubemap,i);
 493       glDeleteTextures( 1, &cm->texture_id );
 494       glDeleteFramebuffers( 1, &cm->framebuffer_id );
 495       glDeleteRenderbuffers( 1, &cm->renderbuffer_id );
 496    }
 497
 498    world->status = k_world_status_unloaded;
 499 }
 500
 501 /*
 502  * reset the world structure without deallocating persistent buffers
 503  * TODO: Make this a memset(0), and have persistent items live in a static loc
 504  */
 505 void world_init_blank( world_instance *world )
 506 {
 507    memset( &world->meta, 0, sizeof(mdl_context) );
 508
 509    world->textures = NULL;
 510    world->texture_count = 0;
 511    world->surfaces = NULL;
 512    world->surface_count = 0;
 513
 514    world->geo_bh = NULL;
 515    world->entity_bh = NULL;
 516    world->entity_list = NULL;
 517    world->rendering_gate = NULL;
 518
 519    world->water.enabled = 0;
 520    world->time = 0.0;
 521
 522    /* default lighting conditions
 523     * -------------------------------------------------------------*/
 524    struct ub_world_lighting *state = &world->ub_lighting;
 525
 526    state->g_light_preview = 0;
 527    state->g_shadow_samples = 8;
 528    state->g_water_fog = 0.04f;
 529
 530    v4_zero( state->g_water_plane );
 531    v4_zero( state->g_depth_bounds );
 532
 533    state->g_shadow_length = 9.50f;
 534    state->g_shadow_spread = 0.65f;
 535
 536 #if 0
 537    /* 2023 style */
 538    v3_copy( (v3f){0.37f, 0.54f, 0.97f}, state->g_daysky_colour );
 539    v3_copy( (v3f){0.03f, 0.05f, 0.20f}, state->g_nightsky_colour );
 540    v3_copy( (v3f){1.00f, 0.32f, 0.01f}, state->g_sunset_colour );
 541    v3_copy( (v3f){0.13f, 0.17f, 0.35f}, state->g_ambient_colour );
 542    v3_copy( (v3f){0.25f, 0.17f, 0.51f}, state->g_sunset_ambient );
 543    v3_copy( (v3f){1.10f, 0.89f, 0.35f}, state->g_sun_colour );
 544 #else
 545    /* 2024 style */
 546    v3_copy( (v3f){0.308f, 0.543f, 0.904f}, state->g_daysky_colour );
 547    v3_copy( (v3f){0.030f, 0.050f, 0.200f}, state->g_nightsky_colour );
 548    v3_copy( (v3f){1.000f, 0.320f, 0.010f}, state->g_sunset_colour );
 549    v3_copy( (v3f){0.130f, 0.170f, 0.350f}, state->g_ambient_colour );
 550    v3_copy( (v3f){0.25f, 0.17f, 0.51f}, state->g_sunset_ambient );
 551    v3_copy( (v3f){1.000f, 0.809f, 0.318f}, state->g_sun_colour );
 552 #endif
 553 }